Erasing and polishing device



0. K. ISENSEE.

ERASING AND POLISHING DEVICE.

APPLICATION FILED MAY 20, 1919. IIENEWED APR. I9. I92I.

1.379,922. PaIenIeIMay 31,1921.

//\/ I /EN TOR;

LOZZO K. fszzse;

A TTOR/VE Y.

tra l OTTO K. ISENSEE, 0F CHINO, CALIFORNIA.

Emisiiive AND PoLisi-riiire DEVICE.

Specification of Letters Patent.

`application inea May 2o, 1919,- seriai no. 298,395. Reneweaiiprii i9, 1921. Aserial No. 462,797.

To all whom t may concern:

Be it known that I, OTTO K. Is'ENsEE, a citizen of the United States, residing lat Chino, in the county of San Bernardino and State of California, have invented new and useful Improvements inf Erasing and Polishing Devices, of which the following is a specification.

This invention relates-to improvements in erasing, burnishing and polishing devices, and more particularly to the class in which spun glass is utilized as a medium whereby the erasing, burnishing or polishing is accomplished.

It has for its object to provide 'an improved holder means foi` -holdinga spun glass brush or cartridge so that same may be `readily adjusted and put into operative position as it is used or worn away.

A further object is to provide a holder eectively utilizing a spun glass brush within it, and having at one end a rubber eraser so that said erasing, burnishing or 'polishing device may be utilized not only in the burnishing of chinaware, or erasing ofink, but may be used to erase pencil marks as well.

In practising my invention I provide holder having reduced end portions at either end and corrugated portions adjacent to the reduced end portions or Vmouth-pieces, so that the rholder may be gripped by the fingers without any fear of slippage in manipulating the device.

With the above and other objects in View, the inventionfconsists in theiiovel features, construction, and unique combinations of partsfand features, all as hereinafter fully described and claimed, the descriptive matter being supplemented by the accompanying drawing whichv forms a part of this specification.

In the drawing:

Figure 1 is an assembled View of the improved erasing, burnishing or polishing device;

Fig. 2 is a lonvitudinal sectional view, on an enlarged scal e,of lthe device shown in Fgl;

Fig. 3 shows a spun glass erasing medium Y with a threaded ferrule at one end for holding same.; v M

Fig, 4; is a fragmentary logitudinal view attached to one end and gripping same withv a strip attached to said ferrule and running co-aXiallyv within -the spun glass brush for a determined distance Fig. 7 is an end view of the device shown in Fig. 6 yshowing the head of theferrule with a strip attached thereto;

Fig. 8 is a plan view of the knurled head .shown in Fig. 5 and Fig.V 9.showing the extended strip with its ends split and di- .vergently `directed, and ,holding a washer means in position; and t v Fig. 9 is a vertical sectional view of the Fig. 8.

Corresponding parts in all the iigures are designated by-the same reference characters.

. Referring particularly to thedrawing, A

l Patented May 31,192.1.

Aknurled head with its washer shown in l ber eraser. .The holder means A comprises two tubular portions, an louter one aand an inner one o. rIhe inner tubular portion is illustrated in Fig. 4, as wellV as in Fig. v

2. rIhe inner tubular member t comprises a tubular head which is internally threaded as at 2 and is provided at `-one end with -fa reduced portion or .mouth-piece 13 having ::a

split portion 4; running co-aXially with said tubular member l). The tubulargmemloer b threads 5. The mouth-piece hasa cut-.out portion 6 which is used as a means yfor gripis likewise provided with Atapered helical i' ping the rubberreraser that fits within said Y mouth-piece. It will be observed that ythe reduced portion or mouth-piece has itssides 7 convergently arcuated toward a Vcommon axis for a certain distance and then said mouth-piece has its edges vrunning parallel for al distance as at 8, in order to provide a portion of restricted sizey for the rubber eraser contained therein, and likewise jto act as a guide for: same. The outer tubular member a of ,the holder A is provided with a mouth-piece 3a similar in formation to the mouth-piece 3 just described, but instead of being provided with a tapered helical thread 5 is provided with a grip portion 9 which is corrugated in formation. The opposite end of the tubular member a, that is, the end which does not have a mouth-piece, is provided with a circumferential bead 10, which bead lits within the annular recess 11 in the inner tubular holder A sleeve 12 which is corrugated in formation Vand yet at the same time has its corrugations in a threaded form, screws upon the tapered helical thread 5 of the tubular holder Z9. The brush c shown in Fig. 3 with its ferrule 13 screws within the inner tubular rholder Z) along the threaded portion 2 of same. In assembling the device brush c is screwed within the inner tubular holder o as shown in Fig. 2, and the outer tubular holder a with the sleeve 12 is slipped over the tubular holder rlhe sleeve 12 is then screwed upon the tapered helical threads 5 of the holder The rubber eraser d is placed within the mouthpiecej3 before the sleeve is screwed `on tightly. As will be observed, the tapered helical threads 5 have a constantly increasing diameter from the recessed portion 11 to the mouth-piece 3, and inasmuch as the inner tubular member has a split portion 41 the action of screwing the sleeve 12 upon the threads 5, tends to Vclose the split portion 4 and in doing so grips the rubber eraser Z so that same will not slip when the operation of erasing is performed. Obviously the spun glass eraser c can be moved inwardly `or outwardly/ of the mouth-piece 3a by turning the outer tubular holder a while holding the inner tubular holder sta* tionary by means of the sleeve 12. r)The spun glass brush c is rectangular in formation. If this were not the case or if the brush c were round the device would not work, as will be readily understood. The sleeve12 not only .acts as a grip for the rubber eraser cl, Vbut likewise holds the beaded ends of the outer tubular member a in position within the annular recess 11 of the inner tubular holder Z2.

An alternative method of providing a holder without a rubber eraser therein is shown in its various modifications in Figs. 5, 6, 7, 8 and 9.

. In the device B shown in Fig. 5 it is not necessary to use a rectangular orv angular brush, but a roundV one can be substituted.

,The device B comprises a tubular member split end portions 18 and 19, said end portions being divergently directed and acting as a retaining means for holding the washer g in position upon the knob f. A small hole 2O passes through both the knob f and the washer g and a pin may be inserted within this hole so that the washer g and the knob f may turn together. l/Vhen the pin is removed the washer is free to rotate upon the knob By referring to Fig. 7 it will be observed that the brush c is in this case round, and has passing through the threaded ferruled portion 13 the strip 17.. rlhis strip 17 passes co-aXially downwardly within the brush c and is the same strip that connects with the knob f. By inserting the pin through the hole 20 in the knob f and the washer g, the brush c may be placed within the tubular holder e and by turning the knob f the threaded portion 21 ofthe washer g is screwed within the threaded portions 15 of the tubular holder c, after which the pin may be removed from the hole 20. lt will now be observed that in order to move the t brush either inwardly or outwardly of the tubular holder e, all that is necessary is to turn the knob f, inasmuch as the washer g will not move. By turningthe knob the strip 17 which is rectangular in formation, as above described, turns the brush c and the brush being held by the threaded ferrule 13, is caused to move along on the threaded portions 15 of the tubular member c. v

ln practising the invention l provide a spun glass eraser or cartridge treated with a resinous compound such as shellac, or the like, whereby the glass fibers may be confined to a definite area and the fibers maintained in a definite shape. rlhis is a distinct advantage over theordinary form or forms of glass erasers existing on the market at present, in that the ends of said glass erasers fray out, become uneven when using same, break ofi", and if brushed by the hand, the glass fibers get into the pores of the skin, with resulting injury thereto. By treating the brush with shellac and allowing to dry, or pressing into form Or baking as is necessary, the fibers wear off evenly when used, and yet at the same time wear off very finely so that brushing with the hand does not result in any injury thereto.

The spun glass when so treated stands up rmly when projected from the holder, which is not true of the fibrous glass now used.V

lt is obvious that many changes may be made in the features of construction for carrying out the invention as described;rhow ever, these changes may berma'de within the scope of the invention as claimed, without acrificing the principal advantages.

It will also be noted that by using a substancle''such as shellac the glassf'cartridge is -not flexible. In fact, the resinous comv pound is hard and brittle and not tenacious enough to vsecurelyl hold the glass -ibers'inl close relation to each other, excepting temporaril-y when in aholder. A rubbing of the glass brush C upon any substanceiwhen an end thereofV isfexposed through the 1 mouthpiece 3a will `immediately icanse the shellac to let go of the glass bers.

Having thus disclosed my invention, I claim and desire to secure by Letters Patent:

l. A device of the character disclosed, comprising a tubular holder member, a surface-treating element housed within the holder member and adapted to project from one end thereof for application to a surface to be treated, and means coperating with the holder member to produce projection of such surface-treating element from one end of said holder member; said surfacetreating material being provided with a threaded ferrule, and said tubular holder member being internally threaded to co-act therewith; means being provided for turning said ferrule relative to said holder member to advance said surface-treating material; said surface treating material comprising an elongated mass of spun glass and means associated with the mass of spun glass for maintaining the mass in a definite shapesaid means being a resinous com pound.

2. A device of the character disclosed, comprising a tubular holder member, a surface-treating element housed Within the holder member and adapted to project from one end thereof for application to a surface to be treated, and means coperating with the holder member to produce projection of such surface-treating element from one end of said holder member; said surface-treating material being provided with a threaded ferrule, and said tubular holder member being internally threaded to co-act therewith; means being provided for turning said ferrule relative to said holder member to advance said surface-treating material; a mouth-piece being applied over said holder member and through which said material is adapted to be projected, said mouthpiece being rotatably connected with said holder member and being so formed as to permit projection of said surface-treating material, but to prevent turning of the same within the mouth-piece.

3. A device of the character described, including an internally threaded tubular holder, an elongated surface-treating element housed within the holder and adapted to be slidably projected beyond the same, a ferrule carrying the surface treating element and engaging the internal threads of the holder, a member rotatable upon the the para.

` tubulary holder -i and means upon?. the rota- 'table' member having an engagement 'with the surface-treating element and'interlocking 'therewith to prevent relative rotation-'of J4. Alder/icey of thel character described, :in-I

Vcluding Y an internally',l threaded-f tubular holder, an elongated surface-tfreafting'y elementsli'dably mounted within the holdery and comprising a mass of spun glass held together by a binder, a ferrule carrying the surface-treating element., and engaging the internal threads of the holder, a member rotatable upon the tubular holder, and means upon the rotatable member slidably engaging the surface treating element and interlocking vtherewith to prevent relative rotation of the said parts.V

5. A device of the character described, including an internally threaded tubular holder, a surface treating element housed Y within the holder and adapted to be projected beyond the same, a ferrule carrying the surface treating element and engaging the internal threads of the holder, an outer tubular shell housing the holder and swiveled thereon, and a head at the end of the shell which slidably engages the surface ltreating element and interlocks therewith to prevent relative rotation of the said members. v v

6. A device of the character described, in-

cluding a tubular holder having one end thereof split and provided at the base of the said split portion with a flared portion, an eraser received within the split end of the holder, a sleeve threaded upon the flared portion and coperating therewith to cause the arms of the split portion to grip the eraser, a surface-treating elementV slidable within the tubular holder and projecting from the opposite end thereof, a ferrule carrying the surface-treating element and having a threaded engagement with the interior of the tubular holder, an outer tubular shell housing the tubular holder and swiveled thereon, means maintaining the parts in such swiveled relation and a head at the endl of the tubular shell slidably engaging the projecting end of the surface-treating element and interlocking therewith to prevent relative rotation. l

7. A device of the character described, in cluding a tubular holder having one end thereof split and provided at the base of the split portion with a flared portion and also l with an annular depression, anV eraser reinterior of the tubular holder, an outer tubuf lar shell housing the tubular holder and rotatable thereon, said `shell being formed with a rib received within the before-mentioned annular depression, means retaining the rib within such depression and a head at the end of the tubular shell provided with a portion which slidahly engages the projecting end of the surface-treating element and interlocks therewith to prevent relative ro- 10 tation of the parts.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

OTTO K. ISENSEE.

Witnesses:

MILDRED LEACH, J. CALVIN BROWN. 

